NEW YORK — The Occupy Wall Street protests brought thousands of people to the streets of New York on Wednesday after major labor unions gave their backing to its message.

The march, from Occupy Wall Street’s makeshift headquarters at a park in the financial district to Foley Square in Lower Manhattan, was the largest since the group launched its movement Sept. 17.

Marchers held signs that reflected varying ages, backgrounds and professions. Teachers and nurses mixed with college students holding placards lamenting soaring tuition. Veterans complained of being out of work and homeless. Senior citizens lamented the hardships facing their grandchildren.